Description:Upcoming surveys of the transient sky are expected to discover large numbers of events in which stars are tidally disrupted by supermassive black holes. Among this bounty it may be possible to identify events where the black hole is part of a binary system, providing a new route to finding close supermassive black hole binaries. I will show the results of simulations of tidal disruption by close binaries, and discuss how such events may be understood and isolated. Closer to home, I will argue that the odd properties of the first interstellar visitor to the Solar System, Oumuamua, could point to it being a fragment of a larger body tidally disrupted by a giant planet during ejection from an extrasolar planetary system. (2:00 PM, 726 Broadway, 940, CCPP Seminar)

02/13/2018

Astro Seminar

Ryan Foley

Discovery of the First Electromagnetic Counterpart to a Gravitational Wave Source [ + Description ]